Keyboard



FIG. 1 is a perspective view of a first embodiment of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a perspective view of a second embodiment of the claimed design;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a rear elevational view thereof;

FIG. 13 is a right side view thereof; and,

FIG. 14 is a left side view thereof.

The broken lines formed by dashes show unclaimed subject matter and form no part of the claimed design. The shading shown in the top plan view of FIG. 9 represents a metallic surface. 

CLAIM We claim the ornamental design for a keyboard, as shown and described. 